I hate parts people, the only exception being the guys at the local NAPA. They got their stuff together. I went into oreilly's and told them i needed a pair of 231 U joints. When the guy asked what they were going in, i said it don't matter, just go grab me 2 U joints off the shelf that say 231 on the box. He looked kinda pissed, walked to the back, and came back with what i needed. I always do some research on what i need first and just bring them a part number. That way if its wrong, its my fault, not some kid behind the computer without a clue.